Stadium: C Round: 45 Ground: Hardcourt outdoor
| ITF Great Britain F4 | 2017/09/11 09:00 | Di Maro, Marco v Clarke, Curtis | 6-4,7-5 |
| ITF Spain F28 | 2017/09/05 09:30 | Guttierrez-Ferrol, Sergio v Clarke, Curtis | 6-0,6-0 |
| ITF Spain F28 Qual | 2017/09/03 08:30 | Almeida, Manuel v Clarke, Curtis | 2-6,0-6 |
| ITF Spain F28 Qual | 2017/09/02 14:00 | Clarke, Curtis v Monsonis Uso, Jose Vicent | 7-6,6-2 |
| Challenger Nottingham Qual | 2017/06/10 17:30 | Clarke, Curtis v Alex De Minaur | 0-6,2-6 |
| Tunisia F15, Singles Qualifying | 2017/04/16 10:00 | Margaroli, Luca v Clarke, Curtis | 6-3,6-3 |
| ITF Turkey F11 | 2017/03/19 07:00 | Sabanin, Yan v Clarke, Curtis | 6-3,6-2 |
| ITF Turkey F11 | 2017/03/18 07:00 | Clarke, Curtis v Bulat, Maxim | 6-1,6-3 |
| Coupe Davis | 2017/09/17 10:00 | Nielsen, Frederik v Lloyd Harris | 1-6,6-1,4-6,3-6 |
| Coupe Davis | 2017/09/15 13:00 | Nielsen, Frederik v Scholtz, Nicolaas | 6-4,6-2,6-3 |
| ITF France F18 | 2017/09/04 12:55 | Nielsen, Frederik v Bauvy, Romain | 6-0,6-7,4-6 |
| ITF France F18 Qual | 2017/09/03 14:25 | Nielsen, Frederik v Metti, Tommaso | 6-2,6-4 |
| ITF France F18 Qual | 2017/09/02 13:20 | Nielsen, Frederik v Louis Dussin | 6-1,6-2 |
| ITF Portugal F18 | 2017/08/29 16:00 | Gonzalez, Wilfredo v Nielsen, Frederik | 3-6,7-5,6-0 |
| Challenger Vancouver Qual | 2017/08/13 18:00 | Nielsen, Frederik v Garanganga, Takanyi | 4-6,7-5,3-6 |
| Challenger Vancouver Qual | 2017/08/12 19:05 | Krajicek, Austin v Nielsen, Frederik | 2-6,3-6 |